[Xastir-dev] Weather Changes

[Gerry Creager]

On 03/09/2012 12:36 PM, n7qnm-lists at nwlink.com wrote:
> I'm starting to think about what I would like to do with Xastir in terms
> of changes to the weather stuff; here's what I've come up with in terms of
> some "design goals" and possible approaches -
>
> 1)  Separate the "weather input" processes from "mainline" Xastir, so that
> adding a new "source" becomes simpler, and really just a matter of
> "translating" one format to another.
> 2)  Define single common format for weather data that mainline Xastir
> would read (and write - see below) - not what goes out over the air 3)
> Separate the "weather database" functionality from the mainline Xastir; so
> that Xastir would not have to keep track of things like 24 hour precip,
> pressure trends and so forth
> 4)  Add a "weather output" capability to Xastir, so that it could send
> RECEIVED (net/TNC) weather data to an external "sink" in the defined
> common format.   This would add the same sort of functionalit as the WXN
> weather server and allow users to maintain historical records for multiple
> stations
>
> For a common format - I'm thinking METAR strings appear to be the "highest
> common denominator" (i.e. - most complete data set that's already some
> sort of standard).  Also, an XML DTD has already been defined for METAR
> data, which would make coding conversion routines almost trivial.  If one
> hasn't already been defined, I would develop a DTD for the APRS weather
> string.  Then, conversions would be really easy.

Open Geospatial Consortium's Sensor Web stuff and Sensor Observation 
Service might be good one to consider. METAR is obscure and limited. I 
don't have time now but will get appropriate links as there's work being 
done on weather format schemas (yes, in XML) for SOS.

> For the database - I'm thinking the METEO (meteo.othello.ch) database
> definitions (basically a set of sensor/observation pairs) would be
> reasonably easy to adopt/extend and implement - I'd try to implement
> something that could be database software (MYSQL/POSTGRESS) independent.
>
> The design and some simple hacking with DTDs is about as far as I've
> gotten - I wanted to get some feedback before I really get into things.
>
> What's the group opinion on this?
>
> Thanks!
>
> Clay
> N7QNM
>
>
>
>
> _______________________________________________
> Xastir-dev mailing list
> Xastir-dev at lists.xastir.org
> http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir-dev